Cita APA

Macridis, R. C. (1978). Modern political systems Europe (4a. ed.). London: Prentice-Hall.

Citación estilo Chicago

Macridis, Roy C. Modern Political Systems Europe. 4a. ed. London: Prentice-Hall, 1978.

Cita MLA

Macridis, Roy C. Modern Political Systems Europe. 4a. ed. London: Prentice-Hall, 1978.